Last time I checked, Toyota/Lexus/Scion reliablity is among the best in the business. ALL their offerings are consistently rated well. I can't say the same for Buick.
Last time I checked, Scion = Toyota. The xB and xA share a chassis/engine with the Toyota Echo. The tC shares stuff with the Euro/Japanese market Toyota Avensis and uses the Camry'* four-cylinder motor.
Last time I checked, the current Bonneville still has a Sunfire-grade interior.
Last time I checked, it was overpriced, too.
Last time I checked, interior ergonomics are one of the factors in buying a car. Buyers want to know this stuff, believe it or not.
Last time I checked, styling is subjective: The public seems to like the Scion xB, they're selling quite well. The Pontiac Aztek wasn't so fortunate. The 2000+ Bonneville'* styling didn't get the warmest reception, either...
Last time I checked, Korean marques' quality has vastly improved over the years. I'd be willing to say they equal - if not excel over American quality.
Last time I checked, American cars still tend to have dodgy build quality in some areas.
Consumer Reports is said to be neutral. Obviously, Nicky, you're not
Disclaimer: This message is in no way intended to be a flame of any sort.
Whether or not Toyota paid them off, the fact of their reliability isn't bullshit (Three characters: 22R). I don't think it'* appropriate to write them off as pieces of crap either based upon looks, either, you don't see me calling the 2000-2003 Bonneville (non-GXP type) a "piece of crap", do you? Me not caring for the styling is all. There'* no other factor that I can think of that explains why Scion is being referred to this way